" In broad terms, the Second Law asserts that things get worse. A bit more specifically, it acknowledges that matter and energy tend to disperse in disorder. Left to itself, matter crumbles and energy spreads. The chaotic motion of molecules of a gas results in them spreading through the container the gas occupies. The vigorous jostling of atoms in a hot lump of metal jostles the atoms in its cooler surroundings, the energy spreads away, and the metal cools. That’s all there is to natural change: spreading in disorder. The astonishing thing, though, is that this natural spreading can result in the emergence of exquisite form. If the spreading is captured in an engine, then bricks may be hoisted to build a cathedral. If the spreading occurs in a seed, then molecules may be hoisted to build an orchid. If the spreading occurs in your body, then random electrical and molecular currents in your brain may be organized into an opinion.

The spreading of matter and energy is the root of all change. Wherever change occurs, be it corrosion, corruption, growth, decay, flowering, artistic creation, exquisite creation, understanding, reproduction, cancer, fun, accident, quiet or boisterous enjoyment, travel, or just simple pointless motion it is an outward manifestation of this inner spring, the purposeless spreading of matter and energy in ever greater disorder. Like it or not, purposeless decay into disorder is the spring of all change, even when that change is exquisite or results in seemingly purposeful action. "

― Peter Atkins , On Being: A Scientist's Exploration of the Great Questions of Existence